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GX 470
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System - DTC P0657 - P2A03
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DTC P2419, P2420: Evaporative Emission Pressure Switching Valve Stuck ON; Evaporative Emission Pressure Switching Valve Stuck OFF
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Monitor Strategy
Monitor Strategy
MONITOR STRATEGY
Related DTCs
P2419: Vent valve stuck open
P2420: Vent valve stuck closed
Required Sensors/Components
Vent valve
Frequency of Operation
Once per driving cycle
Duration
2 minutes
MIL Operation
2 driving cycles
Sequence of Operation
None